Sure, she had to work for those skills. She was close to death many many times. That's all wonderful and dandy, but now, with over a hundred of these damn things in her arsenal, one can't help but wonder, hmmm... power fantasy much? Don't get me wrong, I really like how this comic started out with our protagonist being very vulnerable, but right now things are very different. If we're still very much in the prologue, then I don't see how this comic is all that different from the hundreds of other Isekais where "MC starts weak but grows into the strongest and now everything is a pushover!" It had the potential to be, but it squandered it.
Alternatively, say she will still have trouble dealing with enemies in the future, which I don't doubt, it's been the hallmark of this series. There's no way of knowing how dire her situation is, unless one keeps track of all the skills in her arsenal. "Which one could she use to counter this foe? Time to go over the list again". And even then, MC may just pull a surprise Ha-your-counterskill-doesn't-work-because-I-can-brute-force-my-way-around-it. Take this chapter for example: Her enemy blocks magic attacks, what now? Oh, just use more magic. Or take immortality, it means nothing, because she isn't actually immortal.
Either we got a generic power fantasy or an ungrounded, unpredictable power level system. Neither is commendable.
BTW, Even if this comic were a parody of the Isekai formula, that isn't a counter argument to it being a generic comic; There's already countless Isekai-parodies out there.