The Extraterrestrial People brought this to my attention. Their systems are much more advanced that anything on the planet. So I think its safe to say there there is an efficiency issue.
I have already sent MetaQuotes a message see comment #973822.
The point is that accessing objects by name, whether that is creating,
modifying or deleting them is NEVER as efficient as accessing those
objects by index.It wastes cycles which equals money at the end
of the day. If you multiply the total number of wasted cycles by the
number of objects on all charts and global variables in all MT instances
then you can see how its a bigger problem.
If you think it's something important not only for you, you can make the suggestion to Metaquotes by writing to the Service Desk.
But you can be sure you need more solid arguments than what you posted here.