Talking about why projects select different standards to work with - some ICOs simply have specific token distribution terms, for instance, they can include the burning procedure or freezing of tokens for a fixed period of time. Thats all)
the features youve described need like 10-20 lines of code. In general, you can praise the ICO uniqueness all you want, but theyre all similar and everythings already been invented and written when it comes to this concept. Everybody just wants to show off how they select something new instead of the sucky old ERCoo-20 without even mentioning any technical details and whatnot
+1 absolutely agrreed with you. the learning curve is still pretty high but the topic of ICO still causes distrust for many. And the modern advanced standards statements simply confuse investors.