Yes, of course we have a thick layer of rose tint on our nostalgia goggles watching the OT. Its nonsense to suggest otherwise, they truly are our childhood personified and always will be children's films, something that is overlooked by haters of the prequels. The acting and dialogue throughout is not really a great step away from the prequels, but in our now adult minds we can forgive most things because we grew up with them and loved them for so long. In many ways the acting in the prequels is more suited for children with the emotional cues littered throughout by over the top performances; more similarly created in TFA than in R1.
When you watch the de-specialised versions (or just the original cuts on VHS of course), all the wobbly bits, some very poor modelling of creatures (by modern standards) and see through snow speeder window frames jar, but you forgive them because of nostalgia. When you watch a specialised version, one may criticise it being updated, but you forgive it again through a deep love for the romance you have felt for a lifetime of being in love with the trilogy.
We do not though forgive and have such embedded nostalgia for the Prequels because we watched them with (generally young) adult eyes, as thinkers and as critics. We picked them apart and used the nostalgia we hold for the OT as a benchmark, blinded by the sentimentality. We now though enter into a new series 15+ years older and with a keenness to have something good, most of us now have have a more 40+ years old view on life to be more forgiving and less critical, so these new films are possibly accepted more easily.
I also don't think it can be underestimated how quickly the prequels (compared to almost any other film series I can think of) has dated visually. Despite being set a long time ago, in a galaxy far far away, they were created to have an aesthetic of futurism that was very in keeping with the era in which they were made, now though they feel almost as daft as the Bill and Ted's Bogus Journey future and therefore incongruous with the OT aesthetic, which we (again) viewed with nostalgic eyes.
Not one of the 8 films to date is perfect, they all have massive issues, but its rare to hear too much commentary or complaint about the OT as nostalgia dominates.
There are of course too many complex ideas and ideologies attached and embedded in the prequels compared to the other 5 films, and I'm not trying to defend any one set of films over another, just trying to play devils advocate for a moment and look at them all in a flat emotionless way. Its very hard though to not base all my thoughts and argument on the OT as a benchmark, because they came first and are the best!
Grant makes an excellent point (amidst many others I must add):
Are Biker scouts in the film to sell more toys, or is it fun and exciting to add to this infinite universe.
I for one loved my Biker scout toy and to this day its the only childhood figure I have, it was though a toy (money) makers dream, a different stormtrooper that goes fast and has its own toy car that also goes fast and explodes... that's small and cheap to produce.. "we're gonna sell millions"... you bet they did, neither is a tough find either loose or MIB / MOC is it? But as Grant suggests, we don't hear grumblings about them, maybe Ewoks and their girl appeal, but even that is a quiet grumble...Of course in all cases, Shore Troopers, Biker Scouts, Cloud Car Pilots, different coloured Clone Troopers are all there to make money, they are though all there for children to feast on and enhance playtime, play time built around stories for children, made by adults and loved by adults too.