I remember that style scraper. I was so glad when I bought my 1st mag float and placed that scraper in the closet.
For me magnetically coupled glass cleaners are an improvement on the stick style.
I remember fashioning old credit cards to the handheld scraper to act as a disposable scraping surface... ahh the memories.
I guess there's a place for them. If I ran a small tank and was able to stand above the tank, a handheld scraper would be a choice to consider.
For me the ease of having the Tunze scraper with the 4D Aquatics ceramic blade adapters in the water, ready to go at all times is just a convenience thing. Knowing that nothing is going to rust and having that sharp ceramic blade that cuts through even coralline algae like butter seems to be "the next level"... for me anyway.