Maybe Geobra wants exactly that, to avoid that PM is seen as a "building toy".
why not? whether they know it or not their main competition is probably legos. Most stores I know stock the playmobil next to the legos. Most people I know mistake playmobil for lego. Lego itself seems to even mirror playmobil's themes (at the exact same time Playmobil releases them, coincidentally). Even lego has expanded....once they just produced the lego bricks that could be built into anything; now they produce pre-moulded parts that just happen to have lego ports that allow them to be built onto regular lego bricks (like system x). Most of the toy's shape is already moulded into place while you simply add lego parts on top of it on some of their sets now.
Playmobil can expand its market likewise, but from the opposite side of the spectrum: starting out as premoulded sets, it can incorporate the idea of buildability into it.
It wouldn't take much, other than a marketing shift. As far as steck goes, they already have the parts to do it. System x can also be adapted in future sets. Wider market base would result. Better sales.
Happier collectors and kids alike.
I don't see a downside to it. I don't even see an added cost to the company, as I said, the parts already exist. They wouldn't have to develop anything new, other than an added marketing angle.
They could sell sets. They can sell building parts (add-ons) in generic form. (I know they already sell steck add on parts, but they're made to form specific buildings and such....better if they sell add-on steck that can be formed into anything....much like sets of train tracks which can be configured in any way the buyer wants)