It's btw also important of note that the further characters stand apart the harder it is to accurately gauge their true length. I have Vegeta and Trunks displayed with like a good few inches between each other and they look the same height from that angle. Height is really illusory in its appearance. Surrounding measures determine how you view a length, even if it's consistently the same one among different situations.
All in all, I think Tamashii's doing a good job. I definitely got convinced when it came to both Frieza and the Androids. And I'm fine with Trunks as well. I just want tall armoured Trunks already.
/ramble