I don't know if this is an "unpopular opinion" or not (I haven't really seen too many reactions to it), but InternetCo refusing to give Gakupo an English VB is probably the worst decision ever. I get it takes time, but besides Gumi, who has more than enough VBs, Gakupo is their only other kinda popular VOCALOID. And I know quite a few people would throw money if they made an English VB. (I swear I remember seeing a tweet where they refused to give him a Eng. VB... am I wrong? Because I can't find it at the time of writing this)
To a lesser extent, the same goes for the original three (LEON, LOLA, and Miriam) not getting an update. I know for a fact Miriam Stockley would do it in a heartbeat, though I don't know about LEON/LOLA's voice actors. I feel like it would've been better recieved than the new V5 voices. At least, most of the reactions I've seen to V5 voices have been negative.
Anyway, sorry for the rant. Just two dreams that have died.
Popularity ≠ monetary success. Just look at Seeu.
In InternetCo's case, even the profit of a Gackpoid English VB might not justify the commitment, because of Gumi.
She brings them - beside her voicebank sales - way more money through merchandise and brand collaborations.
So time, effort and money will be more focused on Gumi than Gakupo.
Opinion time.
Miku might be the cause for CV04's development hell, but Kaito unoffically took his non-existent bro's place.
Gumi, Una, IA, Yukari, v_flower, the other 5 Cryptonloids, etc. are not underrated. Don't downplay their success to badmouth a certain Vocaloid.
You can like or hate another popular think without that underdog / hipster mentality.
I like Una's design. My only problem are the colours. They are way too saturated. Instead of harmonising with each other, they all compete obnoxiously for attention.