You seem to understand the risk, so to me it would depend on the reward. I'm not thinking in terms of rate of return, but rather in terms of your assets and your retirement date. Is this your first €30,000? Do you already have €1,000,000 saved? I would say that this could be OK, if it is meaningfully changing either your expected retirement date or the standard of living you will have when you retire. So, if you are behind in savings, and this could put you on track, it might be worthwhile. (and in this case, you would likely be behind in savings, but have a relatively high income, so you can afford the payments without redirecting your savings to it)
But if you already have significant savings, or are close to your retirement date anyway, I wouldn't bother. While there is money to be made in such arbitrage, you may already have "enough," and while the risk is low, the bad outcome is the only outcome that would be meaningful to you. There is no need to get fancy if you do not need it.