I can't call it secure way. Risk the same. You staking real crypto (eth) for some tokens, which if site/service disappear will cost zero.
Any business can shut down its doors anytime, at any given moment.
But is it worth doing it?
As long as the business is profitable then its owners/stakeholders have an interest of sustaining the business, and not shutting it down.
Signs of bad practices can be slow withdrawals, lack of customer service, scam accusations and more - so far most trustworthy crypto sites have been proven to be the opposite.
If anything, businsses that you should be much more worried about are the brick & mortar ones, e.g. Ladbrokes in the UK:
https://bitcointalk.org/index.php?topic=5406098.msg60919240#msg60919240William Hill shut down 119+ shops (and the number is growing) - even the stock price is not doing so great.
These businesses are in much more trouble because they are dealing with a much better competition from the Crypto sphere.... still, they got lots of British people to use their existing shops and online sites, but it slowly fades away. They cannot compete with the bonuses/VIP/perks that crypto sites offer their members - they literally have nothing to offer other than one single signup bonus, which is truly pathetic - long term they are the ones that might "disappear" and it "will cost zero" for them to do that.