The assumption is that Taylor can eventually bypass the "only Taylor Prime can take a human looking form" restriction. But, and hear me out, what if this is one restriction she can't bully her way into ignoring?
Also, remember folks that Taylor is trying to keep the fact there is an Insect Master on the down low, as well as the fact that she's effectively a bio-tinker. Releasing a youtube video of spiders doing things which spiders don't do in nature? That's announcing that there is an unknown insect master out there. And she would remain unknown only until Youtube was ordered to hand over who that user is. At which point Taylor's identity being hidden would have a very short expiration date. And if she used any of her custom critters in the video, it would happen even faster due to announcing "hey, there's an unknown bio-tinker out there too".
Again, consider what the consequences of your amusing ideas might be.