You lose some, you win some
I rather not have to spend more than one raid point per boss. If it's a red one, I used my best unit which you see in my sig which deals 400 to 500 Grand damage depending on the element type
I realise the blue hit raid bosses - I can deal more damage than say a pierce raid bosses - my main squad was mostly hit girls
for yellow and green bosses, I sic my 3 star squad (50 Grand) or 4 star squad ( 100 Grand)