In my opinion, POV changes are okay. I get it if you're an inexperienced author or it portrays the story in a more fleshed out fashion that professional writing 95% of the time doesn have. Although, if you have 3+ POV changes in one chapter, let alone 1 character to 3rd person POV then I'm gonna archive.
In short: POV changes are valid but sometimes you need to tackle a learning curve (or if you're experienced: compromise for 3rd POV or only 1 POV). Only 1 persons POV helps readers to get attached to characters and sympathize with said character. While multiple POV's can be: Chaotic, confusing, and generally not fun to read. Having multiple POV's (even more so in a short story) can make the book feel rushed or robotic
