I think the two cases are slightly different, in the example you posted, the comparators receive direct benefit from attacking that website, and the cost of the attack compared to the potential reward makes a lot of sense, imagine you have 10k clients that you may lose today if they managed to access that company's website, spending 100% of what those 10k clients make you in a year might still make economical sense to you especially that the number of companies offering the same service in your country are probably not more than a few, whereby in BTC the case is different.

If you would call Ordinals an attack, then you need to have a reasonable explanation of what the attackers are willing to achive from it. is it BSV folks trying to raise fees so that people would move to their chain? but then -- there are a few thousand other blockchains out there, what if they move to ETH or something else, so this has to be a coordinated attack by a few dozen altcoins, which also doesn't make a lot of sense.

You may call it "abuse" or  "against Bitcoin best practice", that would make more sense, I don't even think calling it "spam" make a lot of sense, spamming on bitcoin is rather expensive and useful, i wouldn't even call it "cloud storage" because their exists cheaper, faster and more effienct cloud storage to store those funny pictures.

The way I see it is that someone or a group of people managed to exploit an opportunity to make money by creating value out of thin air, and now greedy people want to make money by investing in these stupid projects, these people spend millions of dollars hoping to make more millions of dollars in profit -- not to hurt bitcoin or make things worse for other people, they just want to sell their bags to the next person at a higher valuation. this is how I view the current situation.