There are mixed sentiment from markets lots of people are still bearish after the correction is done, but yes, it's a fact that if BTC takes health correction of 10-15% altcoin market will bleed that for sure.
I do agree with it but the correction is happening in a short time and this time bitcoin is recovering again and it's going back to the 57k rate again. I never see bitcoin was taking such big correction at this moment.
The healthy correction should be less than it and it will be probably around 5% correction.