Nothing must confuse you to connect your main wallet to any platform even if it's the real platform for token swap, because you might think it's safe and these people have their ways with your hardware wallet later on.
It was wise of you not to connect your wallet to that platform, as it's always advised to have a separate wallet for any tokens, airdrops, or faucets that require you to connect your wallet to their site. For a long time, many people have been victims of incidents where they connect their real wallets to unknown or malicious faucet sites and unfortunately get scammed, losing their funds.
As a long-term holder, you should consider holding reputable coins like Bitcoin in a hardware wallet where you don't always have to connect to a third party for upgrades. This is another reason why I don't trust most altcoins or tokens out there today. We should all be smart and vigilant to avoid mistakes that could put our funds at risk and leave us frustrated.
Well I don't have much to say but just for the fact anything that has to do with connecting my main wallet online is definitely a no no for me because you don't have to be experience with you losing some funds to actually know that these things are real and many lose their coins always because of cases like this. Although for your investment on altcoins am not against it but if you ask me I think even if you are having other investment you should probably hold Bitcoin at a larger ratio and also have it on a separate wallet to avoid losing funds due to the fact that you are trying to upgrade your altcoins.