Disagree, lot of things can be done depending on the situation.
1. Retake IELTS to score CLB10 in all sections if not already achieved - fastest way to boost CRS
2. Enrol in a 1-year distance PG diploma if you've only Bachelor's degree - you can finish some of them even in 6 months
3. Start learning French to score at least 4 points with CLB5 in all sections, and upto 42 if you can somehow get CLB7 in all sections
Personally, I was initially at 433 with myself as PA in July 2018. Then strategised to make my wife as PA and she scored CLB10 after 2 attempts. Still we were at 437 in August as WES had evaluated her BA+MA degrees as Bachelor + 1 Year PG diploma. Then sent the transcripts again to IQAS and waited for almost 4 months. Meantime I had started learning French a little. Once IQAS provided Masters ECA in early November, we moved up to 444 and were very confident about ITA. But the 2 draws in November came at 449 & 445 and then we lost 5 points due to Birthday in December. That was crushing! Another blow was the 19th Dec back-to-back draw where we had 439 (the draw score) but lost out to tie-break date. Still did not give up and started exploring PNPs in January. Got OINP NOI on 15th Jan and then thankfully got the direct ITA on 30 Jan back-to-back draw.
So, my point is keep trying and hope for a bit of luck somewhere! This is a long journey, patience and perseverance are key