Production and logistics have gotten more expensive. That has happened economy-wide, and will only get worse as the pandemic exponentiates. They’ve also become less reliable, which is why we have hoarding.
The purpose of price spikes is to incentivise production, to create slack in the system. (It also reduces the quantity demanded. Toilet paper at a 100% premium doesn’t do much to someone purchasing a normal amount. But it is material at hoarding volumes.)
One could say “we don’t want more price discrimination.” But that is a choice to prefer shortages over price increases. (Which is fair.) If I have a warehouse of toilet paper, I am incentivised to ship it to Texas or New York over California. (Counterpoint: low income consumers there are going to face pressure to use alternatives.)
Bottom line: these are not costless policies. (That doesn’t make them bad per se.)