As i explained above you are the one that doesn't understand that this not an attack , it's a result of your premise that there should be a fee market and a limited scarce blocksize . You want a network that works on your needs , where full nodes decide how network will work . Well , from what i see , your full node that i guess is rejecting any "non-standard transaction" doesn't play any part on how blocks are building . Maybe it's time to understand how PoW consensus really works ?
It really cannot be considered an attack, directly. But, this does not mean that it cannot be used as a tool for less-intentioned people to achieve their goals, which are less favorable for the network.
I'll give you an example, which happened yesterday. On prime-time TV, there was a report on the success of some companies in my country. When trying to access 2 or 3 websites of these companies, the websites were not prepared for so many visits and did not work correctly. I believe that the attention the report received led people to research the subject. But what guarantee is there that competing companies were not taking advantage of the moment to harm? Of course I'm just speculating, and I know that's not what happened. But, it could happen.
What I mean by this is that despite what is happening, it is not exactly an attack. It can be used to achieve certain purposes that are purely personal and not for the good of the network.
It has already been mentioned in other topics that if two or three large mining pools align themselves, they can achieve "ordinal" transactions with the sole purpose of increasing fees. Because in the end, they will always win, as the fees they are paying are for themselves.