You're mostly right. Street-trials bike give you so much opportunities to ride everything in so many ways.
I started to ride pogostick and be bored in just 8 months (but when I just started motivation was unbelievable, rain, shower, snow, -20 -30 -36°C, I don't give a single f**k, I just ride-ride-ride).
Brakeless helped alot not to leave trials at all (I thought about it).
But now I have this beautiful fourplay with more trialsy stem (90x35) and feel awesome. I ride every day until I hurt myself or exhausted. 90% of time by myself, alone, and see no problem in this.
I can do trials and street on one bike and this is amazing. Yes it's hard to do some huge static gaps and sidehops because it weights a ton and geo is not pogostick like but I don't care, the main reason I ride is for fun and joy, and with street-trials bike I get the MAX of it.