I think the interest for matic is totally going to decline when that beginnings. Obviously, matic being the local token for the organization is important for the motivation behind why its cost is siphoning.

Interest in using the Matic blockchain has dropped due to many competitors. The chart above is telling us about how Matic got only 144k USD in revenue from the fees this month. It has also placed it as an L2 blockchain with smaller revenue. That horrible result means none are using it anymore. The Matic revenue from blockchain fees tells us if this blockchain is dying now.
Also, POL upgrade makes it even worse because it's going to dilute the supply of tokens. And it's not just a "name change." I expect the price to go down even deeper.
Thanks for a good infographic! I too think that that's not a rebranding of sorts, but a dump due to the factors you described.
And it will stay that way for a while.