I read:

So if you draw the connection to the left inlet before the connection to the right inlet, also in your abstraction the message will be sent to the left inlet before the right.

I don't think that's what he was asking,

...

In pd this is not possible, so i wondered if this is because the connections would be unreliable in execution(the old "not specificated execution order" case) ?

as marius pointed out the execution order is specified for now, but the model may change so, don't rely on it use triggers, but I don't see why the multiple connections in one go should be a problem. Since you will specify the inlets in a certain order (even using a modifier key) that could be used to order the multiple connects. Sounds definitely like a nice feature to me.

regards,

x