Bitcoin was not designed to store arbitrary data, it was designed as a money. Hence arbitrary data being stored on chain and clogging its money use case can be considered unwanted and spam according to this ethos.

From the start, measures were taken to combat spam (e.g. fees). These measures have been unsuccesul for the past months, which lowers or slows the adoption of Bitcoin as money.

I am not saying Luke has the right solution here. Or anyone for that matter.