Not surprising, that there is no stickiness for a free card. You can be registered at every provider for free and don’t even need to use it, not even try it out and you will be considered a customer.
Personal experience is, that last year did a campaign at our company, and at least 20 people signed up for Revolut. But, almost nobody is using it. Also, myself did not use Revolut in the last 4-5 months, as I am cool with my local countries’ bank’s free debit and credit cards and used TW card for travels, just because I have balance there, not for any specific reason. At the moment use Revolut only for currency calculation
What do you think?