>>56184157She isn't particularly bad or weak really, the thing is she seems more like a fallible mere mortal compared to her genmates which makes her easy pickings.
The other thing is once there is a meta of "_____ woman BAD" going around some people are just itching for anything they can see that reinforces that notion for them, confirmation bias because they want to trust their gut instincts more than what they see sometimes and if their gut instincts about Shiori are bad, something minor or literally-nothing for sone Holos is now a red flag just for Shiori. Some key things you would pick up on even without catalog schizos whispering in your ear would be "shiori seems to know nothing about Holo despite starting things off with a vtuber history stream" and "she for whatever reason is going on a considerable vacation literally right after debuting."
Some people fall into the "she is a super senior vtuber so she knows what she is doing and can do whatever she wants" lineup and others are more like "she has been here all this fucking time and acts like a total noob still at some things? how good was she again exactly, how much real care or effort has she put in learning the ropes." So basically kinda like many Mori gaffes Shiori IMO is actually giving people ammo to use which is unfortunate, although it is not as bad as people make it out to be really.