For a given baseline, perhaps yes?. Kelvin has its baseline inherent, for C you can pick what you like if you're clear about it. Perhaps. (Edit: and using only positive or negative temps as pointed out above)
Parent's spaghetti examples weren't the most illustrative.
What I believe they're griping about is that "10°C does not have 10x as much heat as 1°C."
In actuality, "10°C has 10x the difference in heat that 1°C has relative to the freezing point of water."
So it's a comparison definition quirk, not a numerical one.
For a given baseline, perhaps yes?. Kelvin has its baseline inherent, for C you can pick what you like if you're clear about it. Perhaps. (Edit: and using only positive or negative temps as pointed out above)