To be practical, it would have been significantly painful for Apple to adapt and improve KHTML by keeping their code and changes outside it and only dynamically

To be practical, it would have been significantly painful for Apple to adapt and improve KHTML by keeping their code and changes outside it and only dynamically linking to KHTML. If it were just as easy (or even comparably easy) to carry on (and maintain) development via external linkage, LGPL would have been long useless.