They're right on the scale issue, but I gotta say I'm content with the army of astromechs I have, and if they are only going forward with smaller ones, I'm at a bit of a dilemma. That's a LOT of repainted astromechs to replace, and I think I'd rather just say "screw it", and keep the larger ones.
I like Luke being smaller, he should be. Same with leia. Han and Lando should be average height for the most part, Chewie very tall... I like the direction Hasbro went with that, but waiting till the 15th year of collecting to make astromechs smaller?