Okay I wish i had known this before applying, cudav saved me all this time and effort. so looks like before you have got a substantial LICO validating NOA , u shud ideally apply for a visitor visa showing parents' funds and not super visa.So you don’t meet LICO based on 2022. IRCC really wants NOA to show LICO. They can apply for a TRV but will need to show their own funds, travel history, and ties to return. They need to declare refusal too.
That may be the reason. NOA income has to be around or exceed the amount that you show on your LOA. For example your LOA can have annual income of $50000 but if your NOA earned income was only $30000 due to any reasons( like Mat leave or leave of absence or lay off) that still don't meet the requirement as they go by what you earned that year not what your annual income was.
hmm i understand now, Thanks for your response. This sucks, they should consider proof of funds for the current year as well