I don't see it that way at all. In the first place, I don't have the vocabulary (or a Chambers dictionary this week) to be able to go without some form of online word finder. But even then it just spits out possible matches and it's up to me to determine which of those is the correct one. In the second place, I demonstrated to my satisfaction that I am able to get a handle on cracking playfair codes, and since I'm still getting used to them and I won't be submitting the EV I don't see why jumping to the end solution on my first Playfair is an issue. Helps to confirm that I was on the right track.
In the third place, since a computer is still completely unintelligent I can't use it (unless I paid a large amount of money for a special program) to solve these crosswords for me, and just am using it to do the menial work. Which is what tools like computers are there for. Why use a slide rule when you have a calculator?
And finally, even with all of these tools at my disposal it probably took me several days to complete a crossword like that when it first came out and I am now down to measuring time of completion in hours. That's certainly nothing to do with having a faster computer, though I still have a long way to go before I've got the hang of these.