Wrong. Pumps have been related many times to political or actuality events.
There are tons of pumps in the altcoin world every year and people make a lot of $ on this.
You have 3 ways to make profit in cryptocurrencies,
1 holding long term
2 daytrading
3 riding pumps
Playing casino doesn't count as it's too lame
Literally all altcoins can be pumped, just select the right horse, it will give you big profit