Do you have any idea how much time, work and effort these really strong and really talented lightweight weightlifters have put on their training? Probably not.
Most of the population does not have the time, talent and passion (and drugs, cliche...) that these top level weightlifters have. So gain some muscle. You're not going to look some bulky bodybuilder by accident, so don't worry about that.
If you want to be like them, lift twice a day/6 days a week for +10 years.
And one more relevant question: How often lifter fail to progress because of the program (done correctly)? Most of the reasons of plateauing come from weak points (such as mobility, leverages etc.), poor executions of lifts= lack of form, lack of recovery, lack focus and discipline etc...
i'm not a fan of 5x5 intermediate programs, but they do surely work if everything else works also.